My grandfather served in the Navy from ~1943-'5. He was stationed in the Admiralty Islands, near Papua New Guinea, and repaired damaged ships.

Can anyone identify this island, and where exactly it is located? I found the photo today while looking through old family photos, but can't seem to locate the island. I suppose it may not be near the Admiralty Islands at all, but that would be the most likely scenario. I have looked on google maps and wikipedia but so far, have come up short.